Footswitch to blackout lights

[Les]

Many years ago in a different galaxy I made a foootswitch that basically turned the mains off/on to the lighting.

Plug, cable, footswitch unit, socket that the lights were all plugged into kind of configuration.

If I say so myself it was a very sturdy but when I switched it on and off the there was a big "clunk" through the PA
Someone told me that I needed to put a (?) capaciter/resitor/dilithiam crystal/sonic screwdriver/flugle valve in and it wouldn't make the clunk.

He was right and it worked flawlessly for years.

What is it I need to stop the clunk through the PA ? I can't remember.

I could ask our guitarist who would defo know but I'm not even speaking to him at the minute so I thought I'd ask the basschat font of all knowledge.

Ta

Les

[thefyst]

your putting the lighting rig into the PA?

Sometimes you get a pop from guitar pedals when you hit the switch and you get a change in voltage you use a big old resistor on the input and output caps to ground.

Not exactly sure what is going on in your pedal though

TF

[icastle]

You want an X2 suppression capacitor connected between the neutral and live terminals on the switch.

Something like this: http://www.ebay.co.uk/itm/1uf-1mfd-275Vac-X2-Suppression-capacitor-Iskra-KNB1560-73398-22-27-5mm-Pitch-/230939244786

[Les]

Thanks lads